Release 11.12 ("Hergest Ridge")
Release 11.12 ("Hergest Ridge")
| Article ID: gc515 | |
| Author | Salinas, Ricardo; Strader, Jay |
| Title | No Evidence for Multiple Stellar Populations in the Low-mass Galactic Globular Cluster E 3 |
| Journal | The Astrophysical Journal, Volume 809, Issue 2, article id. 169, 7 pp. |
| Year of publication | 2015 (on gclusters from 2016-06-21 12:08:49 ) |
| Abstract | Multiple stellar populations are a widespread phenomenon among Galactic globular clusters. Even though the origin of the enriched material from which new generations of stars are produced remains unclear, it is likely that self-enrichment will be feasible only in clusters massive enough to retain this enriched material. We searched for multiple populations in the low mass globular cluster E3 (...) We find that the CN abundance does not present the typical bimodal behavior seen in clusters hosting multistellar populations, but rather a unimodal distribution that indicates the presence of a genuine single stellar population, or a level of enrichment much lower than in clusters that show evidence for two populations from high-resolution spectroscopy. E3 would be the first bona fide Galactic old globular cluster where no sign of self-enrichment is found. |
| Tags | E 3 |
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